TUBERCULOSIS 173 
a positive reaction when the local swelling is small. This is especially 
true when the tuberculin containing glycerin has been used.” 
Haring and Bell found that there was a thermal reaction following 
the intradermal injection but Moussu and Mantou state that they 
had no rise of temperature following this test. 
This method of using tuberculin is recommended especially for test- 
ing range cattle or those that are not accustomed to being handled. 
Haring and Bell report excellent results by this method. They have 
found that in certain cases where the subcutaneous test failed to give 
ALM. PM. AM. 
900 #00 400 390 500 7%oo 900 09 400 3.00 §09 790 
F 
Ss 
106 
-5| y, 
105. fa 
i 
oF 
10% 2 
4 a 
103 
3 W VN 
tor \Maacn| 16 Ps | ~~ 
i 
s\\ P47] 
I0F \¢ 
4 _\ ZB 
soo | px 
{March is 
99 
vita 
Fig. 38. TEMPERATURE CURVE OF A TUBERCULOUS COW FOR 48 HOURS. THE LINE 
A.A. SHOWS TEMPERATURE FOR 24 HOURS PRECEDING THE INJECTION OF TUBERCULIN, 
WHICH WAS INJECTED AT 9 A. M., MARCH 16; b, b, b, SHOWS THE TEMPERATURE FOR 
THE 24 HOURS AFTER THE TUBERCULIN INJECTION. 
a reaction the intradermal test was positive and on post mortem 
the animals were found to contain tuberculous lesions. This method 
of using tuberculin is recommended by a number of veterinarians and 
it is now the official method recognized for using tuberculin in certain 
states. 
Recently the lower eyelid has been selected as a more suitable place 
to inject the tuberculin. Norgaard, Mohler and others have reported 
upon it, generally with favor. 
Differential diagnosis. Tuberculosis in cattle is to be differentiated 
from actinomycosis, traumatic pericarditis, Johne’s disease, certain 
